a. 1. Marked with little pits, as in smallpox. See Pit, v. t., 2. [ 1913 Webster ]

2. (Bot.) Having minute thin spots; as, pitted ducts in the vascular parts of vegetable tissue. [ 1913 Webster ]

v. i. To make a pattering sound; to murmur; as, pittering streams. [ Obs. ] R. Greene. [ 1913 Webster ]

n. A contrivance for removing the pits from peaches, plums, and other stone fruit. [ 1913 Webster ]

adv. With, or with the sound of, alternating light beats; as, his heart went pitter-patter. [ Webster 1913 Suppl. ]

n. A sound like that of alternating light beats. Also, a pattering of words. [ Webster 1913 Suppl. ]